skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Up sector of minimal flavor violation: top quark properties and direct D meson CP violation

Abstract

Minimal Flavor Violation in the up-type quark sector leads to particularly interesting phenomenology due to the interplay of flavor physics in the charm sector and collider physics from flavor changing processes in the top sector. We study the most general operators that can affect top quark properties and D meson decays in this scenario, concentrating on two CP violating operators for detailed studies. The consequences of these effective operators on charm and top flavor changing processes are generically small, but can be enhanced if there exists a light flavor mediator that is a Standard Model gauge singlet scalar and transforms under the flavor symmetry group. This flavor mediator can satisfy the current experimental bounds with a mass as low as tens of GeV and explain observed D-meson direct CP violation. Additionally, the model predicts a non-trivial branching fraction for a top quark decay that would mimic a dijet resonance.

Authors:
; ; ;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1091530
Report Number(s):
SLAC-PUB-15445
Journal ID: ISSN 1029-8479; arXiv:1305.5537
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Volume: 2013; Journal Issue: 7; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Phenomenology-HEP; HEPPH

Citation Formats

Bai, Yang, Berger, Joshua, Hewett, JoAnne L., and Li, Ye. Up sector of minimal flavor violation: top quark properties and direct D meson CP violation. United States: N. p., 2013. Web. doi:10.1007/JHEP07(2013)166.
Bai, Yang, Berger, Joshua, Hewett, JoAnne L., & Li, Ye. Up sector of minimal flavor violation: top quark properties and direct D meson CP violation. United States. https://doi.org/10.1007/JHEP07(2013)166
Bai, Yang, Berger, Joshua, Hewett, JoAnne L., and Li, Ye. 2013. "Up sector of minimal flavor violation: top quark properties and direct D meson CP violation". United States. https://doi.org/10.1007/JHEP07(2013)166. https://www.osti.gov/servlets/purl/1091530.
@article{osti_1091530,
title = {Up sector of minimal flavor violation: top quark properties and direct D meson CP violation},
author = {Bai, Yang and Berger, Joshua and Hewett, JoAnne L. and Li, Ye},
abstractNote = {Minimal Flavor Violation in the up-type quark sector leads to particularly interesting phenomenology due to the interplay of flavor physics in the charm sector and collider physics from flavor changing processes in the top sector. We study the most general operators that can affect top quark properties and D meson decays in this scenario, concentrating on two CP violating operators for detailed studies. The consequences of these effective operators on charm and top flavor changing processes are generically small, but can be enhanced if there exists a light flavor mediator that is a Standard Model gauge singlet scalar and transforms under the flavor symmetry group. This flavor mediator can satisfy the current experimental bounds with a mass as low as tens of GeV and explain observed D-meson direct CP violation. Additionally, the model predicts a non-trivial branching fraction for a top quark decay that would mimic a dijet resonance.},
doi = {10.1007/JHEP07(2013)166},
url = {https://www.osti.gov/biblio/1091530}, journal = {Journal of High Energy Physics (Online)},
issn = {1029-8479},
number = 7,
volume = 2013,
place = {United States},
year = {2013},
month = {7}
}